package com.xiaotu.common.util;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class HtmlUtil
{

    public static final String regEx_script = "<script[^>]*?>[\\s\\S]*?<\\/script>";
    //定义script的正则表达式
    public static final String regEx_style = "<style[^>]*?>[\\s\\S]*?<\\/style>"; //定义style的正则表达式
    public static final String regEx_html = "<[^>]+>"; //定义HTML标签的正则表达式

    private static final String[] REGX_ARR = new String[]{regEx_script, regEx_style, regEx_html};

    public static String delHTMLTag(String htmlStr)
    {
        return delHTMLTag(htmlStr, true);
    }

    public static String delHTMLTag(String htmlStr, boolean lineSepDel)
    {
        htmlStr = delHTMLTag(htmlStr, REGX_ARR);
        htmlStr = htmlStr.replaceAll("&nbsp;", ""); //过滤html标签
        if (lineSepDel)
            htmlStr = htmlStr.replaceAll("\r|\n", "").replaceAll("\"", "");

        return htmlStr.trim(); //返回文本字符串
    }

    public static String delHTMLTag(String html, String... regex)
    {
        for (String regx : regex)
        {
            Pattern pattern = Pattern.compile(regx, Pattern.CASE_INSENSITIVE);
            Matcher matcher = pattern.matcher(html);
            html = matcher.replaceAll("");
        }
        return html;
    }

    public static String delHTMLTagBak(String htmlStr){
        String regEx_script="<script[^>]*?>[\\s\\S]*?<\\/script>"; //定义script的正则表达式
        String regEx_style="<style[^>]*?>[\\s\\S]*?<\\/style>"; //定义style的正则表达式
        String regEx_html="<[^>]+>"; //定义HTML标签的正则表达式

        Pattern p_script=Pattern.compile(regEx_script,Pattern.CASE_INSENSITIVE);
        Matcher m_script=p_script.matcher(htmlStr);
        htmlStr=m_script.replaceAll(""); //过滤script标签

        Pattern p_style=Pattern.compile(regEx_style,Pattern.CASE_INSENSITIVE);
        Matcher m_style=p_style.matcher(htmlStr);
        htmlStr=m_style.replaceAll(""); //过滤style标签

        Pattern p_html=Pattern.compile(regEx_html,Pattern.CASE_INSENSITIVE);
        Matcher m_html=p_html.matcher(htmlStr);
        htmlStr=m_html.replaceAll("").replaceAll("\r|\n", "").replaceAll("\"", ""); //过滤html标签

        return htmlStr.trim(); //返回文本字符串
    }
}
